Byron ii



(No Model.)

B. H. ROSE. SASH BALANCE.

UNITED STATES PATENT OFFICE BYRON IL'ROSE, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE PULLMAN SASII BALANCE COMPANY, OF SAME PLACE.

V'sAsi-LBALNCE.

SPECIFCATON forming part of YlettersPatent No. 469,598, dateddFebruary 23, 1892.

Application filed December '7, 1891. Serial No. 414,224. (No model.)

To af/ZZ whom it may concern: and the other end is attached to the half-hub Be it known that I, BYRON I-I. ROSE, of c of the casing D, as shown at g.

Rochester, in the county of Monroe and State G is the ordinary tape or cord attached to o of New York, have invented a certain new and winding on the drum, its free end being 5 and useful Improvement in Sashalances; provided with a loop h, that connects with and I do hereby declare that the following is theV window-sash. a full,clear, and exact description of the same, II is a brake, consisting of a metal block, reference being had to the drawings accompreferably provided with a felt or other soft panying this specification. pad 7e, that rests in contact with the tape ro My improvement relates to that cla-ss .in around the drum. One end rests against or which a spring-case is attached to the wiriwithin a lug Z of the casing D and the other dow-jamb and a tape or cord attached to the against the face-plate A. It can be used spring-drum extends down and is connected either above or below the drum. Instead of 6o with the sash. resting loosely in the casing it maybe p-ivoted [5 The invention consists in the combination to the end of the casing D, as shown in Fig. 4. of parts by which brake action is applied to The operation is as follows: When the tape the tape that winds on the drum, as hereinis drawn down by the lowering of the sash, after more fully described. the drum is turned and the spring wound up,

In the drawings,'Figure l is a perspective thereby increasing the tension. As this zo view of the device. Fig. 2 is a longitudinal spring is attached at one end to the drum and vertical section in line oc :r of Eig. l. Eig. 3 at the other to the loosely-turning casing D, is a cross-section in line y y of Fig. l. Fig. 4 the latter is caused to turn to a limlted deis a modification of the brake attachment. gree in the direction indicated by the arrow, 7o

A indicates the face plate, which is at- Fig. 2. This draws upon the brake. II and 2 5 tached to the casing by means of screws in the causes it to hold with greater force4 against ordinary way, and B B are two cheeks or side the outside of the tape. The greater the tenplates, which form the bearings for the drum. sion the greater will be the pressure of the C is the roller, turning on a shaft a, which brake. By this means the brake is applied passes through from side to side and rests in automatically and in proportion to the ten- 3o the side plates B B. sion on the spring.

D is a casing, which also rests loosely on the Having described my invention, what I shaft a and has a limited turning motion claim as new, and desire tosecure by Letters" thereon. On the outer side this casing is cir- Patent, is- 8o cular and concentric with the drum; but on In asash-balance, the combination, with the 35 the inner side its ends are straight and horistationary frarneiand a spring-drum mounted "f zontal, as shown. In fact it is a rim which therein, of an inclosing casing turning freely fits loosely between the side plates B B and on the same axis with the drum, a brake actucovers the interior mechanism. Alittle space ated by the casing to apply resistance to the is left between its ends and the back of the drum, and atape winding on the drum, as and 4o face-plate A to allow the necessary rocking for the purpose specil'ie motion. On its inner face is a central hollow In witness whereof I have hereunto signed hub c, which rests around the shaft, and on my name in the presence of two subscribing the inner face of the drum O is a similar halfwitnesses.

hub cl, which fits inside the half-hub c. BYRON II. ROSE. 45 E is the coiled spring inside the drum, by iVitnesses:

which the latter is operated. One end of this R. F. OsGooD,

spring is attached to the drum, as shown at f, Clins. A. VIDENER. 

